Narrativas do trauma no jornalismo local : o rompimento da barragem da Samarco em Mariana.

Este artigo busca analisar as estrat?gias narrativas empregadas pelo jornalismo laboratorial universit?rio marianense para construir uma narrativa do trauma nas p?ginas do jornal Lampi?o. O objetivo ? perceber como o ve?culo materializa a experi?ncia do rompimento da barragem do Fund?o, pertencente ? Samarco, em Mariana (MG), evento traum?tico das coletividades locais, por meio de sua narra??o, compreendendo o jornalismo contempor?neo como meio e possibilidade para tal. Ao mesmo tempo, o trabalho procura problematizar tal estrat?gia de constru??o do acontecimento catastr?ico nas p?ginas de jornais. Debru?amo- nos sobre o texto impresso nas mat?rias do jornal com o aporte das abordagens psicanal?ticas sobre o trauma e dos estudos do campo do jornalismo sobre a cobertura de riscos e cat?strofes, ancorados na an?lise de conte?do.his article seeks to analyze the narrative strategies employed by Mariana?s experimental journalism to build a trauma narrative in the newspaper Lampi?o. he aim is to understand how the vehicle materializes the experience of Fund?o dam rupture, belonging to Samarco, in Mariana (MG), traumatic event of local communities, through its narration, understanding contemporary journalism as mean and possibility for it. At the same time, the research aims to problematize such building strategy of the catastrophic event in newspapers. We worked through the text on the newspaper?s pages with the contribution of psychoanalytic approaches about trauma and journalism studies about the coverage of risks and disasters, anchored on content analysis

Reference values and influence of age on erythrogram of Murrah buffaloes

O eritrograma é uma avaliação que representa um auxílio ao clínico no diagnóstico de afecções que acometem os animais domésticos. No entanto, estudos hematológicos em bubalinos são escassos, havendo poucas informações na literatura a respeito de valores de referência dos constituintes sanguíneos desta espécie. Assim, este trabalho teve como objetivo a análise do eritrograma de búfalos de diferentes faixas etárias da raça Murrah, machos e fêmeas. Os animais em estudo foram distribuídos em quatro grupos experimentais, de acordo com as idades: Grupo 1: animais com idade entre o nascimento e 3 meses (n=15); Grupo 2: animais com idade entre 4 e 6 meses (n=50); Grupo 3: animais com idade entre 7 e 12 meses (n=50); e Grupo 4: animais com idade superior a 12 meses (n=50). Como resultados das análises foram encontrados os seguintes valores médios, no Grupo 1: 7,9x106 hemácias/mL de sangue (He); 13,0 g/dL de hemoglobina (Hb); hematócrito (Ht) de 38,9%; Volume Corpuscular Médio (VCM) de 49,0 fl; Concentração Hemoglobínica Corpuscular Média (CHCM) de 33,6 %, e Hemoglobina Corpuscular Média (HCM) de 16,4 pg; no Grupo 2: He: 7,1 x10(6)/mL; Hb: 12,5 g/dL; Ht: 36,8%; VCM: 52,4 fl; CHCM: 33,9%, e HCM: 17,8 pg; no Grupo 3: He: 7,9 x10(6)/mL; Hb: 12,0 g/dL; Ht: 33,8%; VCM: 43,1 fl; CHCM: 35,4%, e HCM: 15,34 pg; e no Grupo 4: He: 6,7 x10(6)/mL; Hb: 11,7 g/dL; Ht: 34,4%; VCM: 53,4 fl; CHCM: 34,4%. e HCM: 17,4 pg. A análise estatística dos resultados encontrados para as diferentes faixas etárias permitiu concluir que ocorreram variações determinadas pela evolução da idade, caracterizadas por diminuição do número médio de hemácias (He), da concentração de hemoglobina (Hb) e do valor do hematócrito (Ht). Os índices hematimétricos apresentaram variações significativas no G3.Erythrograms aid the veterinary practitioner in the diagnosis of diseases that affect domestic animals. However, hematological studies involving buffaloes are scarce, with little information in the literature on reference values for blood components in this species. Therefore, the objective of this study was analyze erythrograms of Murrah breed buffaloes of different ages, both males and females. Buffaloes in the study were distributed into four experimental groups, according to their ages: Group 1, animals from birth to 3 months of age (n=15); Group 2, animals from 4 to 6 months of age (n=50); Group 3, animals from 7 to 12 months of age (n=50); and Group 4, animals from 13 months to five years of age (n=50). The following values were obtained, for Group 1: 7.9x10(6) erythrocytes/mL (He), 13.0g/dL hemoglobin (Hb), hematocrit (Ht) 38.9%, Mean Corpuscular Volume (MCV) 49.0 fl, Mean Hemoglobin Corpuscular Concentration (MCHC) 33.6%, and Mean Corpuscular Hemoglobin (MCH) 16.4 pg; for Group 2: He7.1x10(6)/mL, Hb12.5g/dL, Ht 36.8%, MCV 52.4 fl; MCHC 33.9%; and MCH 17.8 pg; for Group 3: He 7.9x10(6)/mL, Hb12.0g/dL, Ht 33.8%, MCV 43.1 fl, MCHC 35.4%, and MCH 15.34pg; for Group 4: He 6.7x10(6)/mL, Hb 11.7g/dL, Ht 34.4%, MCV 53.4 fl, MCHC 34.4%, and MCH 17.4 pg. Statistical analysis of the results for the different age ranges permitted the conclusion that when the animals got older there was a decrease in the mean red cell counts (He), hemoglobin concentration (Hb) and hematocrit values (Ht). Although hematometric indexes showed significant variations in G3

Chemical Composition and Fermentation Profile of Perennial Peanut and Marandu Grass Mixed Silages

Perennial peanut has high quality, evidenced by the improvement of animal production in grazing, due to good contents of crude protein and digestibility, which makes it one of the best alternatives for low cost feeding (Paganella and Valls 2002). Grass ensilage associated with legumes is considered an alternative to meet the protein demand of cattle in the livestock. However, due to limited information on the techniques of grass ensilage with tropical legumes, this research aimed to evaluate the chemical composition and the fermentation profile of perennial peanut and Marandu mixed grass silages, treated or not with bacterial inoculant

Alpha‐synuclein fibrils amplified from multiple system atrophy and Parkinson's disease patient brain spread after intracerebral injection into mouse brain

Parkinson's disease (PD), multiple system atrophy (MSA), and dementia with Lewy bodies (DLB) are neurodegenerative disorders with alpha-synuclein (α-syn) aggregation pathology. Different strains of α-syn with unique properties are suggested to cause distinct clinical and pathological manifestations resulting in PD, MSA, or DLB. To study individual α-syn spreading patterns, we injected α-syn fibrils amplified from brain homogenates of two MSA patients and two PD patients into the brains of C57BI6/J mice. Antibody staining against pS129-α-syn showed that α-syn fibrils amplified from the brain homogenates of the four different patients caused different levels of α-syn spreading. The strongest α-syn pathology was triggered by α-syn fibrils of one of the two MSA patients, followed by comparable pS129-α-syn induction by the second MSA and one PD patient material. Histological analysis using an antibody against Iba1 further showed that the formation of pS129-α-syn is associated with increased microglia activation. In contrast, no differences in dopaminergic neuron numbers or co-localization of α-syn in oligodendrocytes were observed between the different groups. Our data support the spreading of α-syn pathology in MSA, while at the same time pointing to spreading heterogeneity between different patients potentially driven by individual patient immanent factors

Interação do NLRP3-Inflamassoma com doenças autoimunes: uma revisão de literatura

Introduction: Among the protection mechanisms of the immune system, there is the protein-inflammasome complex. This intracellular complex acts as a sensor and mediator of danger signals, being formed by three basic structures: NOD-type receptor, ASC adapter protein and pro-caspase1. Once activated, it is able to induce interleukin maturation and secretion, mainly IL-1β and IL-18. However, the deregulation of this molecular platform has been associated with the development and progression of many inflammatory and autoimmune diseases. Methods: Bibliographic review using the academic Google, Medline, as databases. Center for Biotechnology Information (PubMed) and the Scientific Electronic Electronic Library Online (SciELO) electronic library. The search was carried out in articles published from 2000 to 2020, in Portuguese and /or English, with the keywords inflammasome, autoimmune disease, rheumatoid arthritis, type I diabetes mellitus, systemic lupus erythematosus and multiple sclerosis. Development: An etiological relationship between autoimmune diseases and inflammasome activation has been shown. Studies have demonstrated the importance of the protein complex in the regulation of innate immunity and its significance in autoimmune diseases. Conclusion: This analysis demonstrated that the loss of self-tolerance involved in autoimmune diseases is substantially related to the exacerbated production of cytokines IL-1β and IL-18 due to the altered genes resulting from the activation of the NLR-Inflamasome complex.Introdução: Dentre os mecanismos de proteção do sistema imunológico, está o complexo proteico-inflamassoma. Este complexo intracelular atua como sensor e mediador de sinais de perigo, sendo formado por três estruturas básicas: receptor do tipo NOD, proteína adaptadora ASC e pró-caspase1. Uma vez ativado, é capaz de induzir a maturação e a secreção de interleucinas, principalmente, IL-1β e IL-18. No entanto, a desregulação dessa plataforma molecular tem sido associada ao desenvolvimento e progressão de muitas doenças inflamatórias e autoimunes. Métodos: Revisão bibliográfica utilizando como bases de dados o Google acadêmico, Medline, Center for Biotechnology Information (PubMed) e a biblioteca eletrônica Scientific Eletronic Library Online (SciELO). A busca foi realizada em artigos publicados no período de 2000 a 2020, em português e/ou inglês, com as palavras-chaves inflamassoma, doença autoimune, artrite reumatoide, diabetes melittus tipo I, lúpus eritematoso sistêmico e esclerose múltipla. Desenvolvimento: Foi evidenciado uma relação etiológica das doenças autoimunes com a ativação do inflamassoma. Estudos demonstraram a importância do complexo proteico na regulação da imunidade inata e seu significado nas doenças autoimunes. Conclusão: Esta análise demonstrou que a perda da autotolerância envolvidas nas doenças autoimunes está substancialmente relacionada a produção exacerbada de citocinas IL-1β e IL-18 devido aos genes alterados decorrentes à ativação do complexo-NLR-Inflamassoma

Estudo da Compressão Primária de Resíduos Sólidos Urbanos (RSU) Aterrados / Study of the Primary Compression of Grounded Municipal Solid Waste (MSW)

The monitoring of differential settlements is used to estimate the increased lifecycle of sanitary landfills, to maintain slope stabilization and safety of operations. The research objective was to use the soil mechanics methodology for determining the physical indexes used to calculate the settlement of Municipal Solid Waste (MSW). MSW samples were collected in a landfill in Brazil, at two different depths - Group 1 (0.5 m), Group 2 (0.8 m). Samples had ten years of grounding. Group 1 presented an average moisture content of 121.43%; specific mass of 1.06 ± 0.24 g.cm-³; initial void ratio of 5.73 ± 1.65; final void ratio of 4.10 ± 1.42; and primary compression index (Cc) of 1.26 ± 0.26. Group 2 presented an average moisture content value of 118.66%; specific mass of 1.10 ± 0.4 g.cm-³; initial void ratio of 6.72 ± 3.9; final void ratio of 5.13 ± 3.1; and Cc of 1.32 ± 0.26. No significant differences were identified between the Cc’s of Group 1 and 2, although the different depths. The methodology in this study can be validated, as it shows that soil mechanics characteristics can be applied to MSW, since the results were similar to other studies in the literature. 

Cytokine Production but Lack of Proliferation in Peripheral Blood Mononuclear Cells from Chronic Chagas' Disease Cardiomyopathy Patients in Response to T. cruzi Ribosomal P Proteins

Background:Trypanosoma cruzi ribosomal P proteins, P2β and P0, induce high levels of antibodies in patients with chronic Chagas' disease Cardiomyopathy (CCC). It is well known that these antibodies alter the beating rate of cardiomyocytes and provoke apoptosis by their interaction with β1-adrenergic and M2-muscarinic cardiac receptors. Based on these findings, we decided to study the cellular immune response to these proteins in CCC patients compared to non-infected individuals.Methodology/Principal findings:We evaluated proliferation, presence of surface activation markers and cytokine production in peripheral blood mononuclear cells (PBMC) stimulated with P2β, the C-terminal portion of P0 (CP0) proteins and T. cruzi lysate from CCC patients predominantly infected with TcVI lineage. PBMC from CCC patients cultured with P2β or CP0 proteins, failed to proliferate and express CD25 and HLA-DR on T cell populations. However, multiplex cytokine assays showed that these antigens triggered higher secretion of IL-10, TNF-α and GM-CSF by PBMC as well as both CD4+ and CD8+ T cells subsets of CCC subjects. Upon T. cruzi lysate stimulation, PBMC from CCC patients not only proliferated but also became activated within the context of Th1 response. Interestingly, T. cruzi lysate was also able to induce the secretion of GM-CSF by CD4+ or CD8+ T cells.Conclusions/Significance:Our results showed that although the lack of PBMC proliferation in CCC patients in response to ribosomal P proteins, the detection of IL-10, TNF-α and GM-CSF suggests that specific T cells could have both immunoregulatory and pro-inflammatory potential, which might modulate the immune response in Chagas' disease. Furthermore, it was possible to demonstrate for the first time that GM-CSF was produced by PBMC of CCC patients in response not only to recombinant ribosomal P proteins but also to parasite lysate, suggesting the value of this cytokine to evaluate T cells responses in T. cruzi infection.Fil: Longhi, Silvia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Atienza, Augusto. Gobierno de la Ciudad de Buenos Aires. Hospital General de Agudos "Ramos Mejía"; ArgentinaFil: Perez Prados, Graciela. Gobierno de la Ciudad de Buenos Aires. Hospital General de Agudos "Juan A. Fernández"; ArgentinaFil: Buying, Alcinette. Torrey Pines Institute for Molecular Studies; Estados UnidosFil: Balouz, Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; ArgentinaFil: Buscaglia, Carlos Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; ArgentinaFil: Santos, Radleigh. Torrey Pines Institute for Molecular Studies; Estados UnidosFil: Tasso, Laura Mónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; ArgentinaFil: Bonato, Ricardo. Gobierno de la Ciudad de Buenos Aires. Hospital General de Agudos "Ramos Mejía"; ArgentinaFil: Chiale, Pablo. Gobierno de la Ciudad de Buenos Aires. Hospital General de Agudos "Ramos Mejía"; ArgentinaFil: Pinilla, Clemencia. Torrey Pines Institute for Molecular Studies; Estados UnidosFil: Judkowski, Valeria A.. Torrey Pines Institute for Molecular Studies; Estados UnidosFil: Gomez, Karina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentin

Chronic CRH depletion from GABAergic, long-range projection neurons in the extended amygdala reduces dopamine release and increases anxiety

The interplay between corticotropin-releasing hormone (CRH) and the dopaminergic system has predominantly been studied in addiction and reward, while CRH-dopamine interactions in anxiety are scarcely understood. We describe a new population of CRH-expressing, GABAergic, long-range-projecting neurons in the extended amygdala that innervate the ventral tegmental area and alter anxiety following chronic CRH depletion. These neurons are part of a distinct CRH circuit that acts anxiolytically by positively modulating dopamine release.Fil: Dedic, Nina. Max Planck Institute Of Psychiatry; AlemaniaFil: Kühne, Claudia. Max Planck Institute Of Psychiatry; AlemaniaFil: Jakovcevski, Mira. Max Planck Institute Of Psychiatry; AlemaniaFil: Hartmann, Jakob. Max Planck Institute Of Psychiatry; AlemaniaFil: Genewsky, Andreas J.. Max Planck Institut Of Psychiatry; AlemaniaFil: Gomes, Karina S.. Max Planck Institute Of Psychiatry; AlemaniaFil: Anderzhanova, Elmira. Max Planck Institute Of Psychiatry; AlemaniaFil: Pöhlmann, Max L.. Max Planck Institute Of Psychiatry; AlemaniaFil: Chang, Simon. Max Planck Institute Of Psychiatry; AlemaniaFil: Kolarz, Adam. Max Planck Institute Of Psychiatry; AlemaniaFil: Vogl, Annette M.. Max Planck Institute Of Psychiatry; AlemaniaFil: Dine, Julien. Max Planck Institute Of Psychiatry; AlemaniaFil: Metzger, Michael W.. Max Planck Institute of Psychiatry; ArmeniaFil: Schmid, Bianca. Max Planck Institute Of Psychiatry; AlemaniaFil: Almada, Rafael C.. Max Planck Institute Of Psychiatry; AlemaniaFil: Ressler, Kerry J.. Harvard Medical School; Estados UnidosFil: Wotjak, Carsten T.. Max Planck Institute Of Psychiatry; AlemaniaFil: Grinevich, Valery. University of Heidelberg; AlemaniaFil: Chen, Alon. Max Planck Institute Of Psychiatry; AlemaniaFil: Schmidt, Mathias V.. Institute Of Developmental Genetics, Helmholtz Zentrum; AlemaniaFil: Wurst, Wolfgang. German Center for Neurodegenerative Diseases; AlemaniaFil: Refojo, Damian. Max Planck Institute Of Psychiatry; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación en Biomedicina de Buenos Aires - Instituto Partner de la Sociedad Max Planck; ArgentinaFil: Deussing, Jan M.. Max Planck Institute Of Psychiatry; Alemani

The cyanobacterial saxitoxin exacerbates neural cell death and brain malformations induced by zika virus

The northeast (NE) region of Brazil commonly goes through drought periods, which favor cyanobacterial blooms, capable of producing neurotoxins with implications for human and animal health. The most severe dry spell in the history of Brazil occurred between 2012 and 2016. Coincidently, the highest incidence of microcephaly associated with the Zika virus (ZIKV) outbreak took place in the NE region of Brazil during the same years. In this work, we tested the hypothesis that saxitoxin (STX), a neurotoxin produced in South America by the freshwater cyanobacteria Raphidiopsis raciborskii, could have contributed to the most severe Congenital Zika Syndrome (CZS) profile described worldwide. Quality surveillance showed higher cyanobacteria amounts and STX occurrence in human drinking water sup-plies of NE compared to other regions of Brazil. Experimentally, we described that STX dou-bled the quantity of ZIKV-induced neural cell death in progenitor areas of human brain organoids, while the chronic ingestion of water contaminated with STX before and during gestation caused brain abnormalities in offspring of ZIKV-infected immunocompetent C57BL/6J mice. Our data indicate that saxitoxin-producing cyanobacteria is overspread in water reservoirs of the NE and might have acted as a co-insult to ZIKV infection in Brazil. These results raise a public health concern regarding the consequences of arbovirus outbreaks happening in areas with droughts and/or frequent freshwater cyanobacterial blooms.Fil: Pedrosa, Carolina da S. G.. D’Or Institute for Research and Education; BrasilFil: Souza, Leticia R. Q.. D’Or Institute for Research and Education; BrasilFil: Gomes, Tiago A.. Universidade Federal do Rio de Janeiro; Brasil. Instituto Oswaldo Cruz; BrasilFil: de Lima, Caroline V. F.. D’Or Institute for Research and Education; BrasilFil: Ledur, Pitia F.. D’Or Institute for Research and Education; BrasilFil: Karmirian, Karina. D’Or Institute for Research and Education; Brasil. Universidade Federal do Rio de Janeiro; BrasilFil: Barbeito Andrés, Jimena. Universidade Federal do Rio de Janeiro; Brasil. Universidad Nacional Arturo Jauretche. Unidad Ejecutora de Estudios en Neurociencias y Sistemas Complejos. Provincia de Buenos Aires. Ministerio de Salud. Hospital Alta Complejidad en Red El Cruce Dr. Néstor Carlos Kirchner Samic. Unidad Ejecutora de Estudios en Neurociencias y Sistemas Complejos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Unidad Ejecutora de Estudios en Neurociencias y Sistemas Complejos; ArgentinaFil: Costa, Marcelo do N.. Universidade Federal do Rio de Janeiro; BrasilFil: Higa, Luiza M.. Universidade Federal do Rio de Janeiro; BrasilFil: Rossi, Átila D.. Universidade Federal do Rio de Janeiro; BrasilFil: Bellio, Maria. Universidade Federal do Rio de Janeiro; BrasilFil: Tanuri, Amilcar. Universidade Federal do Rio de Janeiro; BrasilFil: Prata Barbosa, Arnaldo. D’Or Institute for Research and Education; BrasilFil: Tovar Moll, Fernanda. D’Or Institute for Research and Education; Brasil. Universidade Federal do Rio de Janeiro; BrasilFil: Garcez, Patricia P.. Universidade Federal do Rio de Janeiro; BrasilFil: Lara, Flavio A.. Instituto Oswaldo Cruz; BrasilFil: Molica, Renato J. R.. Universidad Federal Rural Pernambuco; BrasilFil: Rehen, Stevens K.. D’Or Institute for Research and Education; Brasil. Universidade Federal do Rio de Janeiro; Brasi